Can a heli-coil insert – be replaced?

I had a small leak where the fill neck connects to the thermostat housing on the intake manifold. When the bolt was removed the heli-coil insert broke

The initial repair was done before I bought the manifold

I am not familiar with heli-coils, can the insert simply be replaced? Or worse case repaired?
Or do I have to drill out an even larger hole for a larger heli-coil

Also any recommendation on repair kits?